Note: When E-Throttle is activated in MaxxECU, the TPS value is now the actual pedal position, see main throttle position values in RealTime Data for actual throttle positions.
Pin |
MaxxECU |
1 |
Motor - |
2 |
Sensor GND |
3 |
+5V power supply |
4 |
Motor + |
5 |
TPS 2 (Analog input x) |
6 |
TPS 1 (Analog input x) |
Pin |
MaxxECU |
1 |
TPS 1 (Analog input x) |
2 |
Sensor GND |
3 |
Motor - |
4 |
TPS 2 (Analog input x) |
5 |
Motor + |
6 |
+5V power supply |
Pin |
MaxxECU |
1 |
TPS 1 (Analog input x) |
2 |
Sensor GND |
3 |
Motor - |
4 |
TPS 2 (Analog input x) |
5 |
Motor + |
6 |
+5V power supply |
Pin |
MaxxECU |
A |
Motor - |
B |
Motor + |
C |
Sensor GND |
D |
TPS 1 (Analog input x) |
E |
+5V power supply |
F |
TPS 2 (Analog input x) |
Pin |
MaxxECU |
1 |
TPS 1 (Analog input x) |
2 |
Sensor GND |
3 |
Motor + |
4 |
TPS 2 (Analog input x) |
5 |
Motor - |
6 |
+5V power supply |
Pin |
MaxxECU |
1 |
Motor - |
2 |
Motor + |
3 |
TPS 2 (Analog input x) |
4 |
Sensor GND |
5 |
+5V power supply |
6 |
TPS 1 (Analog input x) |
Note: The backup signal is maxed out (100%) at 50% MAIN signal, so backup sensor output type must be backup vs. main table in E-Throttle --> Throttle position, backup/error checking.
Pin |
MaxxECU |
1 |
Motor + |
2 |
Motor - |
3 |
TPS 1 (Analog input x) |
4 |
Sensor GND |
5 |
+5V power supply |
6 |
TPS 2 (Analog input x) |
Note: The backup signal is maxed out (100%) at 50% MAIN signal, so backup sensor output type must be backup vs. main table in E-Throttle --> Throttle position, backup/error checking.
Pin |
MaxxECU |
1 |
Motor + |
2 |
Motor - |
3 |
DIN 1 (SENTS signal) |
4 |
Sensor GND |
5 |
+5V power supply |
6 |
The GM 12678223 E-Throttle body connector pin assigment.
SENT protocol input MTune settings.
Pin |
MaxxECU |
1 |
Motor + |
2 |
Motor - |
3 |
Sensor GND |
4 |
TPS 1 (MAIN) (Analog input x) |
5 |
+5V power supply |
6 |
TPS 2 (BACKUP) (Analog input x) |
Pin |
MaxxECU |
1 |
Motor + |
2 |
Motor - |
3 |
TPS 2 (Analog input x) |
4 |
+5V power supply |
5 |
Sensor GND |
6 |
TPS 1 (Analog input x) |
Pin |
MaxxECU |
1 |
TPS 1 (Analog input x) |
2 |
+5V power supply |
3 |
Motor + |
4 |
TPS 2 (Analog input x) |
5 |
Motor - |
6 |
Sensor GND |
Pin |
MaxxECU |
1 |
Motor - |
2 |
Sensor GND |
3 |
+5V power supply |
4 |
Motor + |
5 |
TPS 2 (Analog input x) |
6 |
TPS 1 (Analog input x) |
Inputs --> AIN x-x (0-5V)
See also, Throttle position.
1.Measure the resistance between all pins and find the two with 0.1 to 10 ohms resistance. These are the motor.
2.Test the other four pins in the same way. Find the two pins where the resistance is almost constant when opening and closing the throttle. Usually in the 1-10k ohm range. These are "Sensor GND" and "5V". (It doesn't matter which is which). If more than two pairs have constant resistance, choose the pair with the lower resistance.
3.The two pins that are left are output 1 (MAIN) and 2 (BACKUP).
Note: If there isn't continuity between the four pins that isn't the motor, or if the resistance is above 10k it's likely an active circuit that can't be identified with this method.